Drew Pendergrass
@drewpendergrass.bsky.social
Atmospheric scientist at Duke, also interested in ecological politics | drewpendergrass.com
📰 Read the paper for free! And stay tuned for more research using CHEEREIO coming soon, including from a team at U. Toronto working to track carbon monoxide from global wildfires and from a group at Tsinghua U. assessing China's performance on its methane goals. acp.copernicus.org/articles/25/...
Trends and seasonality of 2019–2023 global methane emissions inferred from a localized ensemble transform Kalman filter (CHEEREIO v1.3.1) applied to TROPOMI satellite observations
Abstract. We use 2019–2023 TROPOMI satellite observations of atmospheric methane to quantify global methane emissions at monthly 2° × 2.5° resolution with a localized ensemble transform Kalman filter ...
acp.copernicus.org
November 12, 2025 at 2:10 PM
📰 Read the paper for free! And stay tuned for more research using CHEEREIO coming soon, including from a team at U. Toronto working to track carbon monoxide from global wildfires and from a group at Tsinghua U. assessing China's performance on its methane goals. acp.copernicus.org/articles/25/...
🔥💧The record fires in Australia in 2020 were, in effect, a climate twin of the record flooding in Africa. This kind of anomaly is expected to increase with warming — an unexpected climate feedback, because it leads to more climate-warming methane to release from newly flooded wetlands.
November 12, 2025 at 2:10 PM
🔥💧The record fires in Australia in 2020 were, in effect, a climate twin of the record flooding in Africa. This kind of anomaly is expected to increase with warming — an unexpected climate feedback, because it leads to more climate-warming methane to release from newly flooded wetlands.
🌏 This flooding in eastern Africa is associated with a positive anomaly in a climate pattern called the Indian Ocean Dipole, which leads water to be transported west across the Indian Ocean, away from Australia and Indonesia and towards eastern Africa.
November 12, 2025 at 2:10 PM
🌏 This flooding in eastern Africa is associated with a positive anomaly in a climate pattern called the Indian Ocean Dipole, which leads water to be transported west across the Indian Ocean, away from Australia and Indonesia and towards eastern Africa.
🌍 In the paper, we apply CHEEREIO to calculate 2019-2023 global methane emissions using satellite methane observations from the TROPOMI instrument. We attribute the 2020-2021 methane surge to wetland activity from flooding in eastern Africa, especially in the river-fed wetlands of South Sudan.
November 12, 2025 at 2:10 PM
🌍 In the paper, we apply CHEEREIO to calculate 2019-2023 global methane emissions using satellite methane observations from the TROPOMI instrument. We attribute the 2020-2021 methane surge to wetland activity from flooding in eastern Africa, especially in the river-fed wetlands of South Sudan.
🛰️ Satellites and ground-based monitors can measure pollutants in the air but cannot infer their sources directly; pollutants may have blown downwind or reacted away. During my PhD, I developed CHEEREIO (cheere.io), free software which tracks pollution back to its source using Bayesian optimization.
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Free software for emission quantification
cheere.io
November 12, 2025 at 2:10 PM
🛰️ Satellites and ground-based monitors can measure pollutants in the air but cannot infer their sources directly; pollutants may have blown downwind or reacted away. During my PhD, I developed CHEEREIO (cheere.io), free software which tracks pollution back to its source using Bayesian optimization.
Reposted by Drew Pendergrass
I need to actually get to my gate in time, but am stuck processing this particular table:
May 30, 2025 at 9:05 PM
I need to actually get to my gate in time, but am stuck processing this particular table: